Very unlikely PCM has failed not common . Is there spark at plugs? fuel pressure good?

Answered by Docfixit (expert)
18,430 answers provided

but both of those are ok as well. Also, I am not getting any spark when I try to start the car, but was also told that the ASD relay switch would stop spark too.

I have been looking in the Hayne's repair manual and it states that the terminal in the PDC that corresponds with terminal 30 of the ASD Relay should have voltage present at all times (even with the key off), and it does. But it also says that the terminal in the PDC that corresponds with terminal 86 on the ASD relay should have voltage ONLY with the ignition key turned to the "On" position. But I tested it and it not only has voltage with the key "On" but when the key is "Off" as well. Could that be a problem??”

I tried all the relays, fuses, etc. I also tried to get codes, but no codes were coming up…it wasn’t being read for some reason. That is when I took it to a mechanic and he said that the PCM was out...

???????

It would be awesome if that was NOT the problem but I don’t know what else to do or check…

Thanks so much for the help!!

Response from buddhaluv79
18 questions asked

Yes both terminals hot all the time. does relay click when key is turned on? see diagram of relay cavity terminals if relay marked 30 & 86 will be 91 & 97. jumper fron 97 to 86 try and start

Answered by Docfixit (expert)
18,430 answers provided

will try it as soon as i get home and let you know what happens...thanks so much

Response from buddhaluv79
18 questions asked

O.K.

Answered by Docfixit (expert)
18,430 answers provided

I hope I am doing this in the correct forum, but when I came across this guys problem with his car I was curious about what your diagnosis was since I am having the same problem with my 1998 Dodge Stratus 2.5L V6. So what I gather by your response is that both terminals running hot all the time could be why the car would crank over but will not start. I have checked all the fuses, replaced the distributor and crankshaft position sensor and still nothing. I am not getting a click when the key is in ON position at the relay. Can you please elaborate on your response of what is needed to correct the problem, I am unsure what it is you are suggesting he do.

Also, the fuse box on PCM location no. 1 fuse has no voltage in the ON or OFF position is the normal? I would really appreciate your expertise.

Answered by jbleck
10 questions asked